Home / 12,769.08-17,621.10-7,103.88

Finding the Fourth Proportional to 12,769.08, 17,621.10 and 7,103.88

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Solution

The fourth proportional to 12,769.08, 17,621.10 and 7,103.88 is: 9,803.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.08 : 17,621.10 = 7,103.88 : x
  2. Step 2: Convert to fraction form
    12,769.08/17,621.10 = 7,103.88/x
  3. Step 3: Cross multiply
    12,769.08x = 17,621.10 × 7,103.88
  4. Step 4: Simplify right side
    12,769.08x = 125,178,179.87
  5. Step 5: Solve for x
    x = 125,178,179.87/12,769.08
  6. Step 6: Final answer
    x = 9,803.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.